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Loren on the Art of MATLAB

April 19th, 2008

Blog Comments

I intend to have as few rules as possible about comments on this blog. I may add new rules as the need arises.

  1. I will delete or not answer comments that consist largely of questions about homework. (Also, I do not answer homework questions sent to me by e-mail.
  2. I will delete or not answer requests for "codes."
  3. I will delete comments that are off-topic for the posted blog.
  4. I will delete product advertisements.

Comments are closed.


Loren Shure works on design of the MATLAB language at The MathWorks. She writes here about once a week on MATLAB programming and related topics.

  • Loren: Timothee- Anonymous functions can only be a single (complicated) expression. You might be able to do what you...
  • Timothee: Is there a way to combine multiple commands in anonymous functions? ex1: fun=@(A)([V,D]=eig(A ); A*V-V*D)...
  • Loren: Here’s Cleve’s reply to Etienne: The crucial factor is the number and location of the nonzero...
  • Loren: Tristan- Nested functions can be slower in some cases currently. We know we have some opportunities to...
  • Tristan: Wow! I just tried with a global variable and it’s 5 times slower than with a argument! function...
  • Jon: Loren, I encountered this same problem and I attempted to find the answer by looking at the documentation for...
  • Tristan: “One thing that I have long wondered about is relative speed of nested functions relative to...
  • Etienne Non: Hi! I’m trying to understand why the Matlab function LU.m takes almost 20 times more time to...
  • Loren: Jonathan- The behavior you see is because the variable x has to come into inplaceTest and then a copy is made...
  • Jonathan: I am calling it from another function, but have just noticed a bit more odd behavior. Here is what...

These postings are the author's and don't necessarily represent the opinions of The MathWorks.

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